Experimental Study on the deformation properties of cosmic ices.

宇宙冰变形特性的实验研究。

• 批准号: 04835002
• 负责人: ARAKAWA Masahiko
• 金额: $ 1.28万
• 依托单位: (Institute of Low Temperature Science), Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04835002/
• 关键词: Rheology; Icy satellite; Ammonia-water; Shear stress; Partially melted ice; Viscosity; Geology; Non-Newtonian Fluid; 熱進化; 外惑星; 宇宙雪氷

The steady-state deformation of partially melted ice in the ammonia-water system was studied by means of a concentric cylinder viscometer in shear stresses, 10 kPa-0.1 MPa, temperatures, 180-210K and NH_3 contents, 4.0-8.4%. The flow law found was of a non-Newtonian power-law type ; the power index was 4.0(〕SY.+-.〔)0.1. The activation energy at constant melt fractions was 33.7(〕SY.+-.〔)0.8kJ/mol, which was close to that of viscosity for aqueous ammonia solutions. The calculated effective viscosity of partially melted ice at 0.1 MPa was 10^7-10^<10> Pa s, which is by ten orders of maguitudes smaller than that of the ammonia-water mixture in a solid phase below a peritectic point, 176 K.

利用同心圆筒粘度计研究了在剪应力10 kPa-0.1 MPa、温度180-210K、NH_3含量4.0-8.4%条件下氨-水体系中部分融化冰的稳态变形。发现的流动定律属于非牛顿幂律类型；功效指数为4.0(〕SY.+-.〔)0.1。熔体分数恒定时的活化能为33.7(〕SY.+-.〔)0.8kJ/mol，接近氨水溶液的粘度。 0.1 MPa 下部分融化的冰的计算有效粘度为 10^7-10^10 Pa·s，比包晶点 176 K 以下固相氨水混合物的有效粘度小十个数量级。

项目成果

Masahiko Arakawa: "Mechanical deformation of polycrystalline ice Ih at temperatures 100K-263K:First Report" “Physics and Chemistry of Ice". 464-469 (1992)

Masahiko Arakawa：“100K-263K 温度下多晶冰 Ih 的机械变形：第一份报告”“冰的物理与化学”464-469 (1992)。

Norikazu Maeno: "Deformation of Ice/Rock Mixtures and application to the densification and Thermal Evolution of Icy satellites" Primitive Solar Nebula and Origin of Planets, Terra Sci.Pub.341-353 (1993)

Norikazu Maeno：“冰/岩石混合物的变形及其在冰卫星致密化和热演化中的应用”原始太阳星云和行星起源，Terra Sci.Pub.341-353 (1993)

Masahiko Arakawa: "Mechanical deformation of polycrystalline ice Ih at temperatures 100K-263K:First Report" Physics and chemistry of Ice,Hokkaido Univ.Press. 464-469 (1992)

荒川正彦：“100K-263K 温度下多晶冰 Ih 的机械变形：首次报告”，冰物理与化学，北海道大学出版社。

Arakawa, M.: "Mechanical Deformation of Polycrystalline Ice In at Temperatures 100K-263K : First Report" in Physics and Chemistry of Ice edited by N.Maeno and T.Hondoh(Hokkaido Univ.Press Sapporo). 464-469 (1992)

Arakawa, M.：N.Maeno 和 T.Hondoh 编辑的《冰物理与化学》中的“100K-263K 温度下多晶冰的机械变形：第一份报告”（北海道大学出版社札幌）。

荒川 政彦: "低温下における氷-アンモニア混合物の変形実験" 第15回太陽系科学シンポジウム. (1994)

荒川正彦：“低温下冰氨混合物的变形实验”第十五届太阳系科学研讨会（1994）。